Pull documentation fixes from Jonathan Corbet:
 "Three fixes for the docs build, including removing an annoying warning
  on 'make help' if sphinx isn't present"

* tag 'doc-4.8-fixes' of git://git.lwn.net/linux:
  DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1
  Documenation: update cgroup's document path
  Documentation/sphinx: do not warn about missing tools in 'make help'

Pull nfsd updates from Bruce Fields:
 "Highlights:

   - Trond made a change to the server's tcp logic that allows a fast
     client to better take advantage of high bandwidth networks, but may
     increase the risk that a single client could starve other clients;
     a new sunrpc.svc_rpc_per_connection_limit parameter should help
     mitigate this in the (hopefully unlikely) event this becomes a
     problem in practice.

   - Tom Haynes added a minimal flex-layout pnfs server, which is of no
     use in production for now--don't build it unless you're doing
     client testing or further server development"

* tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux: (32 commits)
  nfsd: remove some dead code in nfsd_create_locked()
  nfsd: drop unnecessary MAY_EXEC check from create
  nfsd: clean up bad-type check in nfsd_create_locked
  nfsd: remove unnecessary positive-dentry check
  nfsd: reorganize nfsd_create
  nfsd: check d_can_lookup in fh_verify of directories
  nfsd: remove redundant zero-length check from create
  nfsd: Make creates return EEXIST instead of EACCES
  SUNRPC: Detect immediate closure of accepted sockets
  SUNRPC: accept() may return sockets that are still in SYN_RECV
  nfsd: allow nfsd to advertise multiple layout types
  nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock
  nfsd/blocklayout: Make sure calculate signature/designator length aligned
  xfs: abstract block export operations from nfsd layouts
  SUNRPC: Remove unused callback xpo_adjust_wspace()
  SUNRPC: Change TCP socket space reservation
  SUNRPC: Add a server side per-connection limit
  SUNRPC: Micro optimisation for svc_data_ready
  SUNRPC: Call the default socket callbacks instead of open coding
  SUNRPC: lock the socket while detaching it
  ...

Pull module updates from Rusty Russell:
 "The only interesting thing here is Jessica's patch to add
  ro_after_init support to modules.  The rest are all trivia"

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  extable.h: add stddef.h so "NULL" definition is not implicit
  modules: add ro_after_init support
  jump_label: disable preemption around __module_text_address().
  exceptions: fork exception table content from module.h into extable.h
  modules: Add kernel parameter to blacklist modules
  module: Do a WARN_ON_ONCE() for assert module mutex not held
  Documentation/module-signing.txt: Note need for version info if reusing a key
  module: Invalidate signatures on force-loaded modules
  module: Issue warnings when tainting kernel
  module: fix redundant test.
  module: fix noreturn attribute for __module_put_and_exit()

Blacklisting a module in linux has long been a problem.  The current
procedure is to use rd.blacklist=module_name, however, that doesn't
cover the case after the initramfs and before a boot prompt (where one
is supposed to use /etc/modprobe.d/blacklist.conf to blacklist
runtime loading). Using rd.shell to get an early prompt is hit-or-miss,
and doesn't cover all situations AFAICT.

This patch adds this functionality of permanently blacklisting a module
by its name via the kernel parameter module_blacklist=module_name.

[v2]: Rusty, use core_param() instead of __setup() which simplifies
things.

[v3]: Rusty, undo wreckage from strsep()

[v4]: Rusty, simpler version of blacklisted()

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

cgroup's document path is changed to "cgroup-v1". update it.

Signed-off-by: seokhoon.yoon <iamyooon@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Merge yet more updates from Andrew Morton:

 - the rest of ocfs2

 - various hotfixes, mainly MM

 - quite a bit of misc stuff - drivers, fork, exec, signals, etc.

 - printk updates

 - firmware

 - checkpatch

 - nilfs2

 - more kexec stuff than usual

 - rapidio updates

 - w1 things

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (111 commits)
  ipc: delete "nr_ipc_ns"
  kcov: allow more fine-grained coverage instrumentation
  init/Kconfig: add clarification for out-of-tree modules
  config: add android config fragments
  init/Kconfig: ban CONFIG_LOCALVERSION_AUTO with allmodconfig
  relay: add global mode support for buffer-only channels
  init: allow blacklisting of module_init functions
  w1:omap_hdq: fix regression
  w1: add helper macro module_w1_family
  w1: remove need for ida and use PLATFORM_DEVID_AUTO
  rapidio/switches: add driver for IDT gen3 switches
  powerpc/fsl_rio: apply changes for RIO spec rev 3
  rapidio: modify for rev.3 specification changes
  rapidio: change inbound window size type to u64
  rapidio/idt_gen2: fix locking warning
  rapidio: fix error handling in mbox request/release functions
  rapidio/tsi721_dma: advance queue processing from transfer submit call
  rapidio/tsi721: add messaging mbox selector parameter
  rapidio/tsi721: add PCIe MRRS override parameter
  rapidio/tsi721_dma: add channel mask and queue size parameters
  ...

Add a "printk.devkmsg" kernel command line parameter which controls how
userspace writes into /dev/kmsg.  It has three options:

 * ratelimit - ratelimit logging from userspace.
 * on  - unlimited logging from userspace
 * off - logging from userspace gets ignored

The default setting is to ratelimit the messages written to it.

This changes the kernel default setting of "on" to "ratelimit" and we do
that because we want to keep userspace spamming /dev/kmsg to sane
levels.  This is especially moot when a small kernel log buffer wraps
around and messages get lost.  So the ratelimiting setting should be a
sane setting where kernel messages should have a bit higher chance of
survival from all the spamming.

It additionally does not limit logging to /dev/kmsg while the system is
booting if we haven't disabled it on the command line.

Furthermore, we can control the logging from a lower priority sysctl
interface - kernel.printk_devkmsg.

That interface will succeed only if printk.devkmsg *hasn't* been
supplied on the command line.  If it has, then printk.devkmsg is a
one-time setting which remains for the duration of the system lifetime.
This "locking" of the setting is to prevent userspace from changing the
logging on us through sysctl(2).

This patch is based on previous patches from Linus and Steven.

[bp@suse.de: fixes]
  Link: http://lkml.kernel.org/r/20160719072344.GC25563@nazgul.tnic
Link: http://lkml.kernel.org/r/20160716061745.15795-3-bp@alien8.de
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Dave Young <dyoung@redhat.com>
Cc: Franck Bui <fbui@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull PCI updates from Bjorn Helgaas:
 "Highlights:

   - ARM64 support for ACPI host bridges

   - new drivers for Axis ARTPEC-6 and Marvell Aardvark

   - new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx

   - pci_resource_to_user() cleanup (more to come)

  Detailed summary:

  Enumeration:
   - Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
   - Add parent device field to ECAM struct pci_config_window (Jayachandran C)
   - Add generic MCFG table handling (Tomasz Nowicki)
   - Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
   - Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)

  Resource management:
   - Add devm_request_pci_bus_resources() (Bjorn Helgaas)
   - Unify pci_resource_to_user() declarations (Bjorn Helgaas)
   - Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
   - Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
   - Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
   - Ignore write combining when mapping I/O port space (Bjorn Helgaas)
   - Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
   - Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
   - Support I/O resources when parsing host bridge resources (Jayachandran C)
   - Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
   - Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
   - Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
   - Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
   - Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
   - Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
   - Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
   - Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)

  PCI device hotplug:
   - Allow additional bus numbers for hotplug bridges (Keith Busch)
   - Ignore interrupts during D3cold (Lukas Wunner)

  Power management:
   - Enforce type casting for pci_power_t (Andy Shevchenko)
   - Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
   - Put PCIe ports into D3 during suspend (Mika Westerberg)
   - Power on bridges before scanning new devices (Mika Westerberg)
   - Runtime resume bridge before rescan (Mika Westerberg)
   - Add runtime PM support for PCIe ports (Mika Westerberg)
   - Remove redundant check of pcie_set_clkpm (Shawn Lin)

  Virtualization:
   - Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
   - Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
   - Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
   - Add ACS quirk for Solarflare SFC9220 (Edward Cree)

  MSI:
   - Fix PCI_MSI dependencies (Arnd Bergmann)
   - Add pci_msix_desc_addr() helper (Christoph Hellwig)
   - Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
   - Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
   - Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
   - Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)

  Error Handling:
   - Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
   - Remove DPC tristate module option (Keith Busch)
   - Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)

  Generic host bridge driver:
   - Select IRQ_DOMAIN (Arnd Bergmann)
   - Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)

  ACPI host bridge driver:
   - Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
   - Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
   - Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
   - Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)

  Altera host bridge driver:
   - Check link status before retrain link (Ley Foon Tan)
   - Poll for link up status after retraining the link (Ley Foon Tan)

  Axis ARTPEC-6 host bridge driver:
   - Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
   - Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
   - Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)

  Intel VMD host bridge driver:
   - Use lock save/restore in interrupt enable path (Jon Derrick)
   - Select device dma ops to override (Keith Busch)
   - Initialize list item in IRQ disable (Keith Busch)
   - Use x86_vector_domain as parent domain (Keith Busch)
   - Separate MSI and MSI-X vector sharing (Keith Busch)

  Marvell Aardvark host bridge driver:
   - Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
   - Add Aardvark PCI host controller driver (Thomas Petazzoni)
   - Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)

  Microsoft Hyper-V host bridge driver:
   - Fix interrupt cleanup path (Cathy Avery)
   - Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
   - Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)

  NVIDIA Tegra host bridge driver:
   - Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
   - Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
   - Use lower-case hex consistently for register definitions (Thierry Reding)
   - Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
   - Stop setting pcibios_min_mem (Thierry Reding)

  Renesas R-Car host bridge driver:
   - Drop gen2 dummy I/O port region (Bjorn Helgaas)

  TI DRA7xx host bridge driver:
   - Fix return value in case of error (Christophe JAILLET)

  Xilinx AXI host bridge driver:
   - Fix return value in case of error (Christophe JAILLET)

  Miscellaneous:
   - Make bus_attr_resource_alignment static (Ben Dooks)
   - Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
   - MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
   - Make host bridge drivers explicitly non-modular (Paul Gortmaker)"

* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
  PCI: xgene: Make explicitly non-modular
  PCI: thunder-pem: Make explicitly non-modular
  PCI: thunder-ecam: Make explicitly non-modular
  PCI: tegra: Make explicitly non-modular
  PCI: rcar-gen2: Make explicitly non-modular
  PCI: rcar: Make explicitly non-modular
  PCI: mvebu: Make explicitly non-modular
  PCI: layerscape: Make explicitly non-modular
  PCI: keystone: Make explicitly non-modular
  PCI: hisi: Make explicitly non-modular
  PCI: generic: Make explicitly non-modular
  PCI: designware-plat: Make it explicitly non-modular
  PCI: artpec6: Make explicitly non-modular
  PCI: armada8k: Make explicitly non-modular
  PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
  PCI: Add ACS quirk for Solarflare SFC9220
  arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
  PCI: aardvark: Add Aardvark PCI host controller driver
  dt-bindings: add DT binding for the Aardvark PCIe controller
  PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
  ...

* pci/resource:
  unicore32/PCI: Remove pci=firmware command line parameter handling
  ARM/PCI: Remove arch-specific pcibios_enable_device()
  ARM64/PCI: Remove arch-specific pcibios_enable_device()
  MIPS/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
  ARM/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
  PCI: generic: Claim bus resources on PCI_PROBE_ONLY set-ups
  PCI: Add generic pci_bus_claim_resources()
  alx: Use pci_(request|release)_mem_regions
  ethernet/intel: Use pci_(request|release)_mem_regions
  GenWQE: Use pci_(request|release)_mem_regions
  lpfc: Use pci_(request|release)_mem_regions
  NVMe: Use pci_(request|release)_mem_regions
  PCI: Add helpers to request/release memory and I/O regions
  PCI: Extending pci=resource_alignment to specify device/vendor IDs
  sparc/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
  powerpc/pci: Implement pci_resource_to_user() with pcibios_resource_to_bus()
  microblaze/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
  PCI: Unify pci_resource_to_user() declarations
  microblaze/PCI: Remove useless __pci_mmap_set_pgprot()
  powerpc/pci: Remove __pci_mmap_set_pgprot()
  PCI: Ignore write combining when mapping I/O port space

* pci/aspm:
  PCI/ASPM: Remove redundant check of pcie_set_clkpm

* pci/dpc:
  PCI: Remove DPC tristate module option
  PCI: Bind DPC to Root Ports as well as Downstream Ports
  PCI: Fix whitespace in struct dpc_dev
  PCI: Convert Downstream Port Containment driver to use devm_* functions

* pci/hotplug:
  PCI: Allow additional bus numbers for hotplug bridges

* pci/misc:
  PCI: Include <asm/dma.h> for isa_dma_bridge_buggy
  PCI: Make bus_attr_resource_alignment static
  MAINTAINERS: Add file patterns for PCI device tree bindings
  PCI: Fix comment typo

* pci/msi:
  PCI/MSI: irqchip: Fix PCI_MSI dependencies

* pci/pm:
  PCI: pciehp: Ignore interrupts during D3cold
  PCI: Document connection between pci_power_t and hardware PM capability
  PCI: Add runtime PM support for PCIe ports
  ACPI / hotplug / PCI: Runtime resume bridge before rescan
  PCI: Power on bridges before scanning new devices
  PCI: Put PCIe ports into D3 during suspend
  PCI: Don't clear d3cold_allowed for PCIe ports
  PCI / PM: Enforce type casting for pci_power_t

* pci/virtualization:
  PCI: Add ACS quirk for Solarflare SFC9220
  PCI: Add DMA alias quirk for Adaptec 3805
  PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset
  PCI: Add function 1 DMA alias quirk for Marvell 88SE9182